We look at the division of 201638 by 586 
The aim is to understand the frequency of 586 in 201638.

Step 1:
586 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 586

Moving on to step 2:
The number 586 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 586

Going ahead to step 3:
201 divided by 586 is 0 with a remainder of 201.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 201 after subtracting 0 from 201.
Bring next digit (6) of the dividend behind the 201 and repeat the process: 2016 / 586

Moving on to step 4:
The number 586 fits into 2016 3 times, leaving a remainder of 258.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 258 after subtracting 1758 from 2016.
Include the next digit (3) from the dividend after 258, then repeat: 2583 / 586

Step 5:
The number 586 fits into 2583 4 times, leaving a remainder of 239.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
Subtracting 2344 from 2583 leaves us with 239.
Grab the next digit (8) from the dividend, add it to 239, then carry on: 2398 / 586

On to step 6:
When dividing 2398 by 586, we get 4 with a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 344.0
If we take 2344 away from 2398, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
586 goes into 540 0 times with a remainder of 540.
Use 0 as the next digit of our solution. 
Result so far: 344.0
Subtracting 0 from 540 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 8:
586 goes into 5400 9 times with a remainder of 126.
Write down 9 as next digit of the result. 
Result so far: 344.09
The remainder is 126 after subtracting 5274 from 5400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 9:
586 can be fit into 1260 2 times, resulting in a remainder of 88.
The next digit of our result is 2. 
Result so far: 344.092
If we subtract 1172 from 1260, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 10:
If we divide 880 by 586, we get 1 and a remainder of 294.
Use 1 as the next digit of our solution. 
Result so far: 344.0921
The remainder is 294 after subtracting 586 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 11:
The number 586 fits into 2940 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 344.09215
If we take 2930 away from 2940, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
100 divided by 586 is 0 with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 344.09215
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 13:
586 goes into 1000 1 times with a remainder of 414.
The number 1 becomes the next digit in our result. 
Result so far: 344.0921501
The remainder is 414 after subtracting 586 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

On to step 14:
When dividing 4140 by 586, we get 7 with a remainder of 38.
The next digit of our result is 7. 
Result so far: 344.09215017
If we take 4102 away from 4140, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

After the division, we end up with 344.09215017 and a remainder of 3.8e-08.